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<A href="introduction6.htm">Debugging Tools for Windows (WinDbg, KD, CDB, NTSD)</A> &gt; <A href="debugger_reference.htm">Debugger Reference</A> &gt; <A href="debugger_commands.htm">Debugger Commands</A> &gt; <A href="kernel_mode_extensions.htm">Kernel-Mode Extension Commands</A> &gt; </div>
	<div id="winchm_template_title">!whea</div>
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	<div id="winchm_template_content"><div id="mainSection"><p>The <b>!whea</b> extension displays top-level Windows Hardware Error Architecture (WHEA) information.</p>
<pre class="syntax">
    <b>!whea</b> 
</pre>
<h2><a id="ddk__ubp_dbg"></a><a id="DDK__UBP_DBG"></a></h2>
<h3><a id="DLL"></a><a id="dll"></a>DLL</h3>
<table>
<tr>
<td>
<p><b>Windows 2000
         </b></p>
</td>
<td>
<p>Unavailable </p>
</td>
</tr>
<tr>
<td>
<p><b>Windows XP</b></p>
</td>
<td>
<p>Unavailable </p>
</td>
</tr>
<tr>
<td>
<p><b>
          Windows Server 2003</b></p>
</td>
<td>
<p>Unavailable </p>
</td>
</tr>
<tr>
<td>
<p><b>Windows Vista and later</b></p>
</td>
<td>
<p>
          Kdexts.dll
         </p>
</td>
</tr>
</table>
<p> </p>
<p>This extension can be used only in Windows Vista and later versions of Windows.</p>
<h3><a id="Additional_Information"></a><a id="additional_information"></a><a id="ADDITIONAL_INFORMATION"></a>Additional Information</h3>
<p>The <a href="#Bookmark2338"><b>!errrec</b></a> and <a href="#Bookmark2337"><b>!errpkt</b></a> extensions can be used to display additional WHEA information.  For general information about WHEA, see <a href="http://go.microsoft.com/fwlink/p/?linkid=153571">Windows Hardware Error Architecture (WHEA)</a> in the Windows Driver Kit (WDK) documentation. </p>
<h2>Remarks</h2>
<p>The following example shows the (truncated) output of the <b>!whea</b> extension: </p>
<div class="code"><span codelanguage=""><table>
<tr>
<th></th>
</tr>
<tr>
<td>
<pre>3: kd&gt; !whea 
Error Source Table @ fffff800019ca250
13 Error Sources
Error Source 0 @ fffffa80064132c0
   Notify Type      : Machine Check Exception
   Type             : 0x0 (MCE)
   Error Count      : 8
   Record Count     : 10
   Record Length    : c3e
   Error Records    : wrapper @ fffffa8007cf4000  record @ fffffa8007cf4030
                    : wrapper @ fffffa8007cf4c3e  record @ fffffa8007cf4c6e
                    : wrapper @ fffffa8007cf587c  record @ fffffa8007cf58ac
                    : wrapper @ fffffa8007cf64ba  record @ fffffa8007cf64ea
                    : wrapper @ fffffa8007cf70f8  record @ fffffa8007cf7128
                    : wrapper @ fffffa8007cf7d36  record @ fffffa8007cf7d66
                    : wrapper @ fffffa8007cf8974  record @ fffffa8007cf89a4
                    : wrapper @ fffffa8007cf95b2  record @ fffffa8007cf95e2
                    : wrapper @ fffffa8007cfa1f0  record @ fffffa8007cfa220
                    : wrapper @ fffffa8007cfae2e  record @ fffffa8007cfae5e
                    : wrapper @ fffffa8007cfba6c  record @ fffffa8007cfba9c
                    : wrapper @ fffffa8007cfc6aa  record @ fffffa8007cfc6da
                    : wrapper @ fffffa8007cfd2e8  record @ fffffa8007cfd318
                    : wrapper @ fffffa8007cfdf26  record @ fffffa8007cfdf56
                    : wrapper @ fffffa8007cfeb64  record @ fffffa8007cfeb94
                    : wrapper @ fffffa8007cff7a2  record @ fffffa8007cff7d2
   Descriptor       : @ fffffa8006413328
      Length                     : 3cc
      Max Raw Data Length        : 392
      Num Records To Preallocate : 10
      Max Sections Per Record    : 3
      Error Source ID            : 0
      Flags                      : 00000000
Error Source 1 @ fffffa8007d00bc0
   Notify Type      : Corrected Machine Check
   Type             : 0x1 (CMC)
   Error Count      : 0
   Record Count     : 10
   Record Length    : c3e
   Error Records    : wrapper @ fffffa8007d01000  record @ fffffa8007d01030
                    : wrapper @ fffffa8007d01c3e  record @ fffffa8007d01c6e
                    : wrapper @ fffffa8007d0287c  record @ fffffa8007d028ac
                    : wrapper @ fffffa8007d034ba  record @ fffffa8007d034ea
                    : wrapper @ fffffa8007d040f8  record @ fffffa8007d04128
                    : wrapper @ fffffa8007d04d36  record @ fffffa8007d04d66
                    : wrapper @ fffffa8007d05974  record @ fffffa8007d059a4
                    : wrapper @ fffffa8007d065b2  record @ fffffa8007d065e2
                    : wrapper @ fffffa8007d071f0  record @ fffffa8007d07220
                    : wrapper @ fffffa8007d07e2e  record @ fffffa8007d07e5e
                    : wrapper @ fffffa8007d08a6c  record @ fffffa8007d08a9c
                    : wrapper @ fffffa8007d096aa  record @ fffffa8007d096da
                    : wrapper @ fffffa8007d0a2e8  record @ fffffa8007d0a318
                    : wrapper @ fffffa8007d0af26  record @ fffffa8007d0af56
                    : wrapper @ fffffa8007d0bb64  record @ fffffa8007d0bb94
                    : wrapper @ fffffa8007d0c7a2  record @ fffffa8007d0c7d2
   Descriptor       : @ fffffa8007d00c28
      Length                     : 3cc
      Max Raw Data Length        : 392
      Num Records To Preallocate : 10
      Max Sections Per Record    : 3
      Error Source ID            : 1
      Flags                      : 00000000
Error Source 2 @ fffffa8007d00770
   Notify Type      : Non-Maskable Interrupt
   Type             : 0x3 (NMI)
   Error Count      : 1
   Record Count     : 1
   Record Length    : 1f8
   Error Records    : wrapper @ fffffa800631b2c0  record @ fffffa800631b2f0
   Descriptor       : @ fffffa8007d007d8
      Length                     : 3cc
      Max Raw Data Length        : 100
      Num Records To Preallocate : 1
      Max Sections Per Record    : 1
      Error Source ID            : 2
      Flags                      : 00000000
Error Source 3 @ fffffa8007d0dbc0
   Notify Type      : BOOT Error Record
   Type             : 0x7 (BOOT)
   Error Count      : 0
   Record Count     : 1
   Record Length    : 4f8
   Error Records    : wrapper @ 0000000000000000  record @ 0000000000000030
   Descriptor       : @ fffffa8007d0dc28
      Length                     : 3cc
      Max Raw Data Length        : 400
      Num Records To Preallocate : 1
      Max Sections Per Record    : 1
      Error Source ID            : 3
      Flags                      : 00000000

. . . . </pre></td></tr></table></span></div></div></div>	
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